Press-fit assembly and electronic device

Abstract

The present invention discloses a press-fit assembly and an electronic device. The press-fit assembly is used to be installed at a through hole of a circuit board. The circuit board is provided with a conductive contact electrically connected to the press-fit assembly at the through hole. The press-fit assembly includes: a terminal and a conductive connector that is separately arranged from the terminal and connected to each other. The conductive connector includes a body, a connecting portion, an upper clamping portion, and a lower clamping portion. The body has an upper end and a lower end relative to each other. The connecting portion is located at the upper end of the body and is used to connect the terminal. The upper clamping portion and the lower clamping portion are located on the body. The body is used to be installed at the through hole of the circuit board and is clamped on the upper surface and the lower surface of the circuit board by the upper clamping portion and the lower clamping portion respectively to limit the movement of the conductive connector in the height direction. The invention is used to improve the convenience of fixing the circuit board, avoid the need for multiple locking when fixing with screws, and also avoid the situation where the circuit board is deformed due to the use of screws.

Description

Technical Field

[0001] The invention relates to the technical field of electronic connection devices, and in particular to a press-fit assembly and an electronic device. Background Art

[0002] Most existing smart bracelets and watches use magnetic charging (see Fig.19 ), the connection inside the shell is to use two metal pillars 100 molded in the shell, and the pins 200 are welded to the conductive contact on the back of the circuit board ( Fig. 20 ) and is pressed into contact with the metal pillar 100 (see Fig. 20 ) to form an electrical connection between the three, and additional plastic columns 202 and holes on the circuit board are still needed around, and then screws 201 are used to penetrate the holes and screw into the plastic columns 202 to fix the circuit board. This arrangement not only takes up space but also increases costs. At the same time, after the screws 201 are locked, the risk of causing deformation of the circuit board will increase. The conductive contact on the back of the circuit board is close to the plastic column, and it is difficult to pre-tin during welding. Once a problem occurs, it is inconvenient to repair. At the same time, the prior art uses multiple locking to achieve the fixing of the shell and the circuit board, and the assembly process is cumbersome.

[0003] For example, in the prior art, the utility model with publication number CN215225187U discloses a sports bracelet with a high waterproof level, which includes a shell and a cover plate arranged at the bottom of the shell, sleeves are welded at the four corners inside the shell, and the tails of the fixing bolts arranged at the four corners of the cover are arranged inside the mounting holes of the sleeves to fix the shell and the cover plate. The sports bracelet in CN215225187U adopts a similar structure as above.

[0004] If screws are used to fix the circuit board, not only does it require multiple locking processes to complete the fixation, it is also inconvenient to install and there is also a risk of deformation of the circuit board. Summary of the invention

[0005] The object of the present invention is to provide a press-fit assembly and an electronic device, which are used to improve the convenience of fixing a circuit board, while also avoiding the situation where multiple locking is required due to the use of screws.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A press-fit assembly is used for being installed at a through hole of a circuit board, wherein the circuit board is provided with a conductive contact piece electrically connected to the press-fit assembly at the through hole, comprising:

[0008] Terminals and conductive connectors that are separately arranged from the terminals and connected to each other;

[0009] The conductive connecting member comprises:

[0010] a body having opposing upper and lower ends;

[0011] A connecting portion, the connecting portion is located at the upper end of the body and is used to connect the terminal;

[0012] The upper clamping part and the lower clamping part are located on the main body, and the main body is used to be installed to the through hole of the circuit board and to be clamped on the upper surface and lower surface of the circuit board by the upper clamping part and the lower clamping part respectively to limit the movement of the conductive connector in the height direction.

[0013] Preferably, the upper clamping portion has an upper protrusion protruding from the outer circumferential surface of the main body, and the lower clamping portion has a lower protrusion protruding from the outer circumferential surface of the main body, the upper protrusion is located above the lower protrusion, and at least one rib protruding outward is provided on the outer circumferential surface of the main body located between the upper protrusion and the lower protrusion, and the rib is used to abut the conductive contact in the through hole of the circuit board to form an electrical connection with the circuit board.

[0014] Preferably, the body has a cavity extending up and down for the terminal to be inserted, and the body also has at least one slit that passes through the inner surface and outer surface of the body and is connected to the cavity. When the body is not installed to the through hole of the circuit board, the outer peripheral diameter of the rib is larger than the diameter of the through hole.

[0015] Preferably, the protrusion height of the lower protrusion of the lower clamping portion gradually increases from bottom to top, so as to guide the body to pass through the through hole of the circuit board;

[0016] When the body passes through the through hole of the circuit board, the lower clamping portion moves toward the cavity of the body;

[0017] When the circuit board is located between the upper protrusion and the lower protrusion, the lower clamping portion is reset.

[0018] Preferably, the lower holding portion is an L-shaped structure, and the free end of the lower holding portion extends toward the cavity of the body.

[0019] Preferably, the connecting portion, the upper holding portion and the lower holding portion are respectively formed integrally with the body, and the connecting portion is located above the upper holding portion and the lower holding portion.

[0020] Preferably, a plurality of upper clamping portions are arranged on the outer circumferential surface of the body in the same height direction and are spaced apart from each other, and a plurality of lower clamping portions are arranged on the outer circumferential surface of the body in the same height direction and are spaced apart from each other, and the upper protrusions and the lower protrusions correspond one to one along the height direction and are arranged in pairs.

[0021] Preferably, the body is provided with a plurality of openings distributed at intervals, and the upper clamping parts and the lower clamping parts arranged in pairs are respectively formed integrally by stamping from the corresponding openings of the body.

[0022] Preferably, the main body also includes an avoidance portion arranged below the connecting portion, and a clamping portion and an accommodating portion are provided on the outer peripheral surface of the terminal, the connecting portion is accommodated in the accommodating portion of the terminal, and the clamping portion of the terminal is clamped in the avoidance portion to limit the displacement of the main body along the height direction.

[0023] Preferably, the terminal is movably connected to the conductive connector, the bottom of the terminal is provided with a sliding portion that can slide up and down in the cavity along the height direction, and at least one limiting groove is provided on the outer peripheral surface of the sliding portion;

[0024] After the sliding portion of the terminal slides downward in the cavity of the body, the upper clamping portion and / or the lower clamping portion is clamped in the corresponding limiting groove to limit the movement of the terminal in the height direction.

[0025] Preferably, the upper clamping portion and the lower clamping portion are both L-shaped structures, and the free ends of the upper clamping portion and the free ends of the lower clamping portion extend toward the cavity of the main body, the upper protrusion is the top of the L-shaped structure of the upper clamping portion, and the lower protrusion is the top of the L-shaped structure of the lower clamping portion, and the free ends of the upper clamping portion and the lower clamping portion abut against at least one of the limit grooves to limit the movement of the terminal in the height direction.

[0026] Preferably, two limiting grooves are provided on the outer peripheral surface of the terminal, and after the sliding part of the terminal slides downward in the cavity of the body, the upper clamping part extends toward the cavity of the body and abuts against one of the limiting grooves, and the lower clamping part is located at the lower end of the body and extends toward the cavity of the body to abut against the other limiting groove.

[0027] Preferably, before the sliding part of the terminal slides downward, the outer diameter of the lower protrusion of the lower clamping part is less than or equal to the outer diameter of the convex rib; the lower protrusion of the lower clamping part is part of an annular structure, and after the sliding part of the terminal slides downward, the outer diameter of the lower protrusion of the lower clamping part is greater than the outer diameter of the convex rib.

[0028] Preferably, when the sliding portion of the terminal slides downward in the cavity of the body, the lower clamping portion is pushed by the sliding portion to rotate outward with the convex rib as a fulcrum and then clamped on the lower surface of the circuit board.

[0029] Preferably, compared with the rest of the lower holding portion and the convex rib, the lower protrusion of the lower holding portion has the largest outer diameter, and the lower end of the lower holding portion has the smallest outer diameter and is a free end.

[0030] An electronic device comprises: a shell, a circuit board and any one of the press-fit components described above, wherein the circuit board is provided with a through hole and a conductive contact member located at the through hole and electrically connected to the press-fit component, the terminal of the press-fit component is embedded in the shell and is provided with a docking portion exposed outside the shell, and the shell is fixedly connected to the circuit board through the press-fit component.

[0031] Compared with the prior art, the beneficial effects of the present invention include at least:

[0032] The upper clamping part and the lower clamping part on the main body are clamped on the circuit board, and the upper clamping part and the lower clamping part limit the movement of the circuit board in the height direction. The circuit board can be fixed by the above structure, which not only does not require multiple locking processes to complete the fixation, but also is easy to install, and also avoids the situation where the circuit board is deformed due to the use of screws. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 is a schematic structural diagram of a first press-fit assembly installed on a circuit board in an embodiment of the present invention;

[0034] Figure 2 yes Figure 1 A three-dimensional schematic diagram of a press-fit assembly;

[0035] Figure 3 yes Figure 1 A cross-sectional schematic diagram of a press-fit component when installed on a circuit board;

[0036] Figure 4 is a schematic structural diagram of a second press-fit assembly installed on a circuit board in an embodiment of the present invention;

[0037] Figure 5 yes Figure 4 A three-dimensional schematic diagram of a press-fit assembly;

[0038] Figure 6 yes Figure 4 A cross-sectional schematic diagram of a press-fit component when installed on a circuit board;

[0039] Figure 7 is a schematic structural diagram of a third press-fit assembly installed on a circuit board in an embodiment of the present invention;

[0040] Figure 8 yes Figure 7 A three-dimensional schematic diagram of a press-fit assembly;

[0041] Fig. 9 yes Figure 7 A cross-sectional schematic diagram of a press-fit component when installed on a circuit board;

[0042] Fig.10is a schematic structural diagram of a fourth press-fit assembly installed on a circuit board in an embodiment of the present invention;

[0043] Fig.11 is a schematic structural diagram of a fourth press-fit assembly in which a terminal is completely inserted into a body in an embodiment of the present invention;

[0044] Fig.12 is a schematic structural diagram of a fourth press-fit assembly in which the terminal is not fully inserted into the body in an embodiment of the present invention;

[0045] Fig.13a A cross-sectional schematic diagram of a fourth press-fit assembly in an embodiment of the present invention when the terminal is not fully inserted into the body and is installed on a circuit board;

[0046] Fig.13b A cross-sectional schematic diagram of a fourth press-fit assembly in an embodiment of the present invention when the terminal is fully inserted into the body and mounted on the circuit board;

[0047] Fig.14 is a schematic structural diagram of a fifth press-fit assembly installed on a circuit board in an embodiment of the present invention;

[0048] Fig.15 is a schematic structural diagram of a fifth press-fit assembly in which a terminal is completely inserted into a body in an embodiment of the present invention;

[0049] Fig.16 is a schematic structural diagram of a fifth press-fit assembly in which the terminal is not fully inserted into the body in an embodiment of the present invention;

[0050] Fig.17a is a cross-sectional schematic diagram of a fifth press-fit assembly in an embodiment of the present invention when the terminal is not fully inserted into the body and is installed on a circuit board;

[0051] Fig.17b is a cross-sectional schematic diagram of a fifth press-fit assembly in an embodiment of the present invention when the terminal is fully inserted into the body and installed on the circuit board;

[0052] Fig.18 is a schematic diagram of the structure of a circuit board in an embodiment of the present invention;

[0053] Fig.19 is a schematic diagram of the overall external structure of an electronic device in an embodiment of the present invention or an electronic device in the prior art;

[0054] Fig. 20 It is an exploded schematic diagram of an electronic device in the prior art;

[0055] Fig.21 Schematic diagram of an explosion of an electronic device in an embodiment of the present invention.

[0056] In the figure: 1, terminal; 2, circuit board; 3, conductive contact piece; 4, through hole; 5, cavity; 6, connecting part; 7, upper clamping part; 8, lower clamping part; 9, upper protrusion; 10, lower protrusion; 11, rib; 12, slit; 13, avoidance part; 14, accommodating part; 15, clamping part; 16, limiting groove; 17, shell; 18, anti-dropping part; 19, incision; 20, body; 100, metal column; 200, pin; 201, screw; 202, plastic column; 21, opening; 22, sliding part; 23, docking part; 1001, conductive connector. DETAILED DESCRIPTION

[0057] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete and to fully convey the concepts of example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0058] The words expressing positions and directions described in the present invention are all explained with reference to the accompanying drawings as examples, but they can be changed as needed, and all such changes are included in the protection scope of the present invention.

[0059] The present invention provides a press-fit assembly, which is used for being installed at a through hole 4 of a circuit board 2. The circuit board 2 is provided with a conductive contact 3 at the through hole 4 which is electrically connected to the press-fit assembly.

[0060] like Figures 1 to 18 , Fig.21 As shown, the press-fit assembly includes a terminal 1 and a conductive connector 1001 which is separately provided from the terminal 1 and connected to each other.

[0061] The conductive connector 1001 includes a body 20, a connecting portion 6, an upper clamping portion 7 and a lower clamping portion 8. The conductive connector 1001 may be made of metal, such as copper. The body 20 has an upper end and a lower end opposite to each other. The body 20 is used to electrically connect the terminal 1 and the conductive contact member 3. The connecting portion 6 is located at the upper end of the body 20 and is used to connect the terminal 1. The connecting portion 6 may include two metal sheets, which are attached to the outer surface of the terminal 1 and embrace the terminal 1. The upper clamping portion 7 and the lower clamping portion 8 are located on the body 20. The body 20 is used to be installed in the through hole 4 of the circuit board 2 and is clamped on the upper surface and the lower surface of the circuit board 2 by the upper clamping portion 7 and the lower clamping portion 8 respectively to limit the movement of the conductive connector 1001 in the height direction.

[0062] In a specific embodiment, the upper clamping portion 7 has an upper protrusion 9 protruding from the outer peripheral surface of the main body 20, and the lower clamping portion 8 has a lower protrusion 10 protruding from the outer peripheral surface of the main body 20. The upper protrusion 9 is located above the lower protrusion 10. When the press-fit assembly is inserted into the circuit board 2, the circuit board 2 is located between the upper protrusion 9 and the lower protrusion 10 of the main body 20, and the upper protrusion 9 and the lower protrusion 10 are respectively clamped between the upper surface and the lower surface of the circuit board 2 to limit the movement of the conductive connector 1001 in the height direction.

[0063] In a specific embodiment, Figure 1 to 1 As shown in FIG. 7 , at least one convex rib 11 protruding outward is provided on the outer peripheral surface of the body 20 located between the upper protrusion 9 and the lower protrusion 10. The convex rib 11 is used to abut the conductive contact member 3 in the through hole 4 of the circuit board 2. Specifically, when the body 20 is inserted into the through hole 4 of the circuit board 2, the convex rib 11 abuts against the conductive contact member 3 located in the through hole 4. The provision of the convex rib 11 increases the holding force between the body 20 and the conductive contact member 3 in the through hole 4, and also makes the electrical connection between the body 20, the conductive contact member 3 and the circuit board 2 more reliable, thereby improving the conductive performance and conductive reliability. It should be noted that the specific number of the convex ribs 11 is not limited in this embodiment, and can be determined according to actual needs, such as the depth of the through hole 4 of the circuit board 2. Figure 5 As shown, two convex ribs 11 are provided on the main body 20 .

[0064] In the prior art, if it is necessary to fix the circuit board 2 in the housing 17 of the electronic device, it is necessary to open a through hole 4 on the circuit board 2, and then pass a screw through the through hole 4 and screw it into the plastic column 202 in the electronic device. However, this will cause the circuit board 2 to deform, and the threaded connection fixing method is not simple enough. In the present application, when fixing the circuit board 2, it is only necessary to pass the main body 20 through the through hole 4 of the circuit board 2 so that the upper clamping part 7 and the lower clamping part 8 clamp the circuit board 2. Only one clamping connection is required to fix the housing 17 and the circuit board 2, and no secondary locking process is required, thereby reducing the number of assembly times and improving assembly efficiency. At the same time, in a specific embodiment, the circuit board 2 is sleeved on the main body 20, and the upper protrusion 9 of the upper clamping portion 7 abuts against the upper surface of the through hole 4 of the circuit board 2, and the lower protrusion 10 of the lower clamping portion 8 abuts against the lower surface of the through hole 4 of the circuit board 2, thereby limiting the movement of the circuit board 2 in the height direction, and the terminal 1 and the housing 17 of the electronic device can be connected in a variety of ways, for example, the terminal 1 is embedded in the housing 17 of the electronic device, or is snap-connected to the housing 17 of the electronic device, or is threadedly connected to the housing 17 of the electronic device. The structure of the present application avoids the situation where the circuit board 2 is easily deformed by using screws, and also facilitates the staff to fix the circuit board 2.

[0065] In a specific embodiment, Figure 1 to Figure 1As shown in FIG. 7 , the upper end of the body 20 may have a cavity 5 extending downward for inserting the terminal 1, and the body 20 is provided with at least one slit 12 extending upward and downward, penetrating the inner and outer surfaces of the body 20 and communicating with the cavity 5. When the body 20 is not installed in the through hole 4 of the circuit board 2, the outer peripheral diameter of the rib 11 is larger than the diameter of the through hole 4. Specifically, the slit 12 is communicated with the cavity 5. The provision of the slit 12 can divide the body 20 into a plurality of parts. When the body 20 is inserted into the through hole 4 of the circuit board 2, each part of the body 20 will gather toward one side of the central axis of the body 20, thereby avoiding hard extrusion between the body 20 and the inner wall of the through hole 4 of the circuit board 2 to damage the circuit board 2 or cause the body 20 to break.

[0066] In a specific embodiment, Figure 1 to Figure 1 7, the protrusion height of the lower protrusion 10 of the lower clamping portion 8 gradually increases from bottom to top. Specifically, when the body 20 passes through the through hole 4 of the circuit board 2, the lower clamping portion 8 will move toward the cavity 5 of the body 20, thereby guiding the body 20 to pass through the through hole 4 of the circuit board 2. When the body 20 moves to the circuit board 2 and is located between the upper protrusion 9 and the lower protrusion 10, the lower clamping portion 8 will be reset to the initial position. The shape setting of the lower clamping portion 8 can play a better guiding role when the body 20 is inserted into the through hole 4 of the circuit board 2. At the same time, since the lower clamping portion 8 can also move toward the side of the cavity 5 of the body 20 when the body 20 is inserted into the through hole 4, this also avoids the situation where the lower clamping portion 8 and the circuit board 2 are hard squeezed and broken.

[0067] In a specific embodiment, Figure 4 to Figure 1 3, the lower clamping portion 8 is an L-shaped structure, and the free end of the lower clamping portion 8 extends toward the cavity 5 of the body 20. It should be noted that the bending portion (lower protrusion 10) of the lower clamping portion 8 is a smooth transition, and the shape of the lower clamping portion 8 can prevent the lower clamping portion 8 from scratching the conductive contact 3 extending to the inner wall of the through hole 4 or even the circuit board 2 when the body 20 is inserted into the through hole 4 of the circuit board 2, thereby reducing the occurrence of electrical connection failure due to scratching the conductive contact 3.

[0068] In a specific embodiment, Figure 1 to Figure 1 As shown in FIG. 7 , the connecting portion 6, the upper clamping portion 7 and the lower clamping portion 8 are respectively integrally formed with the main body 20, and the connecting portion 6 is located above the upper clamping portion 7 and the lower clamping portion 8. The above structure improves the bonding strength between the connecting portion 6, the upper clamping portion 7, the lower clamping portion 8 and the main body 20, avoiding the situation where the bonding strength is low and the breakage occurs, thereby effectively ensuring the bonding force of the connecting portion 6 to the terminal 1 and the clamping effect of the upper clamping portion 7 and the lower clamping portion 8 on the circuit board 2.

[0069] In a specific embodiment, Figure 1 to Figure 1As shown in FIG. 7 , a plurality of upper clamping portions 7 are arranged on the outer circumferential surface of the same height direction of the main body 20, and a plurality of lower clamping portions 8 are arranged on the outer circumferential surface of the same height direction of the main body 20. By arranging a plurality of upper clamping portions 7 and a plurality of lower clamping portions 8, the stability of the main body 20 after being inserted into the through hole 4 of the circuit board 2 is effectively improved, so that the fixation of the circuit board 2 is more stable. It should be noted that the upper clamping portions 7 can also be arranged alternately with the lower clamping portions 8 below. At the same time, as a preferred embodiment, a lower clamping portion 8 is arranged directly below each upper clamping portion 7, and the upper protrusions 9 and the lower protrusions 10 correspond one by one to each other in the height direction and are arranged in pairs.

[0070] In a specific embodiment, Figure 1 to 1 3, the body 20 is provided with a plurality of openings 21 distributed at intervals, and the upper clamping parts 7 and the lower clamping parts 8 arranged in pairs are respectively stamped and formed integrally from the openings 21 corresponding to the body 20. Specifically, when the conductive connector 1001 is inserted into the through hole 4 of the circuit board 2, the lower clamping part 8 will move toward the opening 21 with the connection between the lower clamping part 8 and the body 20 as a fulcrum, thereby avoiding the upper clamping part 7 and the lower clamping part 8 from breaking with the body 20, and also reducing the upper clamping part 7, the lower clamping part 8 and the circuit board 2 from being hard squeezed to damage the circuit board 2 or the conductive contact member 3 located in the circuit board 2.

[0071] As in this embodiment Figure 1 to Figure 1 In the embodiment shown in FIG. 7 , an escape portion 13 is provided between the connecting portion 6 and the upper end of the main body 20, a clamping portion 15 and a receiving portion 14 are provided on the outer peripheral surface of the terminal 1, the connecting portion 6 is received in the receiving portion 14 of the terminal 1, and the clamping portion 15 of the terminal 1 is clamped in the escape portion 13. Specifically, when the clamping portion 15 of the terminal 1 is clamped in the escape portion 13, the connecting portion 6 is received in the receiving portion 14 of the terminal 1. The above structure makes it impossible for the terminal 1 to move up and down, thereby increasing the bonding force between the terminal 1 and the main body 20, avoiding the looseness between the terminal 1 and the main body 20 affecting the fixation of the circuit board 2, thereby further improving the reliability of the fixation of the circuit board 2. It should be noted that the accommodating portion 14 in the press-fit assembly of the fourth structure and the press-fit assembly of the fifth structure in the present application is provided with an extension portion in the height direction for the conductive connector 1001 to slide downward. When the press-fit assembly is not clamped into the through hole 4 of the circuit board 2, the connecting portion 6 is accommodated in the accommodating portion 14. When the terminal 1 slides downward and the press-fit assembly is clamped in the through hole 4 of the circuit board 2, the connecting portion 6 slides downward from the accommodating portion 14 along the extension portion until it abuts against the top of the clamping portion 15, that is, the press-fit assembly is clamped on the upper and lower surfaces of the circuit board 2. At this time, the connecting portion 6 is accommodated in the extension portion.

[0072] As in this embodiment Figure 10 to Figure 1In the embodiment shown in FIG. 7 , the terminal 1 is movably connected to the conductive connector 1001, and a sliding portion 22 that can slide up and down in the cavity 5 along the height direction is provided at the bottom of the terminal 1. At least one limiting groove 16 is provided on the outer peripheral surface of the terminal 1. After the sliding portion 22 of the terminal 1 slides downward in the cavity 5 of the main body 20, the upper clamping portion 7 is clamped in the corresponding limiting groove 16 and / or the lower clamping portion 8 is clamped in the corresponding limiting groove 16 to limit the movement of the terminal 1 in the height direction.

[0073] Specifically, if Figure 10 to Figure 1 3 shows a fourth structure of the press-fit assembly, a limiting groove 16 is provided on the outer peripheral surface of the terminal 1, the upper clamping portion 7 and the lower clamping portion 8 are both inverted L-shaped structures, and the free ends of the upper clamping portion 7 and the lower clamping portion 8 both extend toward the cavity 5 of the body 20, the upper protrusion 9 is the top of the L-shaped structure of the upper clamping portion 7 (the bending part of the upper clamping portion 7), the lower protrusion 10 is the top of the L-shaped structure of the lower clamping portion 8 (the bending part of the lower clamping portion 8), the free end of the upper clamping portion 7 and the lower clamping portion 8 are connected to each other. The free ends of the upper clamping portion 7 and the lower clamping portion 8 abut against the limiting groove 16. During installation, the main body 20 is first inserted into the through hole 4 of the circuit board 2, and then the terminal 1 is inserted into the cavity 5 of the main body 20. When the terminal 1 is inserted into the cavity 5 until the free end of the upper clamping portion 7 and the free end of the lower clamping portion 8 abut against the same limiting groove 16, the free end of the upper clamping portion 7 abuts against the inner top wall of the limiting groove 16, and the free end of the lower clamping portion 8 abuts against the inner bottom wall of the limiting groove 16, thereby limiting the movement of the terminal 1 in the height direction.

[0074] like Figure 14 to Figure 17 shows a fifth type of press-fit assembly, in which two limiting grooves 16 are arranged on the outer peripheral surface of the terminal 1, the upper clamping portion 7 is an inverted L-shaped structure, and the upper protrusion 9 is the top of the L-shaped structure of the upper clamping portion 7. When the press-fit assembly is inserted and clamped on the circuit board 2, the free end of the upper clamping portion 7 extends toward the cavity 5 of the body 20 and abuts against one limiting groove 16, and the lower clamping portion 8 is located at the lower end of the body 20, and the free end of the lower clamping portion 8 extends toward the cavity 5 of the body 20 and abuts against another limiting groove 16. During installation, the body 20 is first inserted into the through hole 4 of the circuit board 2, and then the terminal 1 is gradually inserted from the top to the bottom into the cavity 5 of the body 20 so that the bottom end of the terminal 1 is gradually stretched open. The lower clamping portion 8 reduces the insertion force of the terminal 1 when it is inserted and prevents excessive deformation. When the free end of the upper clamping portion 7 abuts against the limiting groove 16 located above the terminal 1, the free end of the lower clamping portion 8 abuts against the limiting groove 16 located below the terminal 1, and the connection between the lower clamping portion 8 and the main body 20 does not undergo hard compression with the bottom end of the through hole 4 of the circuit board 2, thereby preventing the lower clamping portion 8 from scratching the circuit board 2 or the conductive contact 3 located in the circuit board 2 when it moves toward the side away from the cavity 5. By arranging the limiting groove 16 on the terminal 1, the bonding force between the terminal 1 and the main body 20 can also be improved, thereby further improving the holding force between the main body 20 and the circuit board 2.

[0075] like Figure 14 to Figure 1 As shown in FIG. 7 , as a further implementation of the press-fit assembly of the fifth structure, before the sliding portion 22 of the terminal 1 slides downward, the outer diameter of the lower protrusion 10 of the lower clamping portion 8 is less than or equal to the outer diameter of the convex rib 11, and the lower protrusion 10 of the lower clamping portion 8 is a part of an annular structure. After the sliding portion 22 of the terminal 1 slides downward, the outer diameter of the lower protrusion 10 of the lower clamping portion 8 is greater than the outer diameter of the convex rib 11, so that when the conductive connecting member 1001 passes through the circuit board 2, the lower protrusion 10 is prevented from scratching the circuit board 2 or scratching the conductive contact member 3 located in the circuit board 2. After the sliding portion 22 of the terminal 1 slides downward, the lower protrusion 10 can be made to protrude outward and play a clamping role.

[0076] In a specific embodiment, when the sliding portion 22 of the terminal 1 slides downward in the cavity 5 of the main body 20, the lower clamping portion 8 is pushed by the sliding portion 22 to rotate outward with the convex rib 11 as a fulcrum and then clamped on the lower surface of the circuit board 2, so that when the part of the lower clamping portion 8 located below the convex rib 11 rotates, scratching the circuit board 2 or scratching the conductive contact 3 located in the circuit board 2 is avoided. It should be noted that when the press-fit assembly is inserted and clamped on the circuit board 2, compared with the rest of the lower clamping portion 8 and the convex rib 11, the lower protrusion 10 of the lower clamping portion 8 has the largest outer diameter, and the lower end of the lower clamping portion 8 has the smallest outer diameter and is a free end. After the sliding portion 22 completes sliding downward, the sliding portion 22 protrudes out of the lower end of the lower clamping portion 8.

[0077] It should be noted that the external structure of the electronic device in the prior art and the external structure in this embodiment are similar to Fig.19 As shown, Figures 1 to 19 , Fig.21 As shown, an electronic device in this embodiment includes a shell, a circuit board 2 and any one of the press-fit components described above, the circuit board 2 is provided with a through hole 4 and a conductive contact 3 located at the through hole 4 and electrically connected to the press-fit component, the terminal 1 of the press-fit component is embedded in the shell 17 and is provided with a docking portion 23 exposed outside the shell, the shell 17 is fixedly connected to the circuit board 2 through the press-fit component, in this embodiment, a part of the terminal 1 is embedded in the shell 17, and an anti-detachment portion 18 and a cutout 19 are provided on the outer peripheral surface of the part of the terminal 1 embedded in the shell 17, the anti-detachment portion 18 is used to increase the bonding strength between the terminal 1 and the shell 17, so that the terminal 1 is not easy to fall off from the shell 17, and the fixing effect is better, and the setting of the cutout 19 makes the terminal 1 unable to rotate after being embedded in the shell 17, and the inability of the terminal 1 to rotate further prevents the circuit board 2 from moving, thereby improving the reliability of the electronic device.

[0078] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, substitute and modify the above embodiments within the scope of the invention without departing from the principles and purpose of the present invention. All such changes should fall within the scope of protection of the claims of the present invention.

Claims

1. A press-fit assembly, used for installation at a through hole of a circuit board, wherein the circuit board is provided with a conductive contact at the through hole electrically connected to the press-fit assembly, characterized in that: include: Terminals and conductive connectors that are separately arranged from the terminals and connected to each other; The conductive connecting member comprises: A body, the body having an upper end and a lower end opposite to each other, the body having a cavity extending up and down for inserting a terminal; A connecting portion, the connecting portion is located at the upper end of the body and is used to connect the terminal; An upper clamping portion and a lower clamping portion, the upper clamping portion and the lower clamping portion are located on the body, the body is used to be mounted to the through hole of the circuit board and are clamped on the upper surface and the lower surface of the circuit board by the upper clamping portion and the lower clamping portion respectively to limit the movement of the conductive connector in the height direction; The upper clamping portion has an upper protrusion protruding from the outer peripheral surface of the body, and the lower clamping portion has a lower protrusion protruding from the outer peripheral surface of the body, the upper protrusion is located above the lower protrusion, and at least one convex rib protruding outward is provided on the outer peripheral surface of the body located between the upper protrusion and the lower protrusion, and the convex rib is used to abut against the conductive contact in the through hole of the circuit board to form an electrical connection with the circuit board; The terminal is movably connected to the conductive connector, and a sliding portion is provided at the bottom of the terminal that can slide up and down in the cavity along the height direction; Before the sliding part of the terminal slides downward in the cavity of the body, the conductive connecting piece is installed at the through hole of the circuit board; the sliding part of the terminal slides downward in the cavity of the body to be inserted into the conductive connecting piece.

2. The press-fit assembly according to claim 1, wherein: The body also has at least one slit penetrating the inner surface and the outer surface of the body and communicating with the cavity. When the body is not mounted to the through hole of the circuit board, the outer peripheral diameter of the rib is larger than the diameter of the through hole.

3. The press-fit assembly according to claim 1, wherein: The lower protrusion of the lower clamping portion gradually increases in protrusion height from bottom to top, so as to guide the body to pass through the through hole of the circuit board; When the body passes through the through hole of the circuit board, the lower clamping portion moves toward the cavity of the body; When the circuit board is located between the upper protrusion and the lower protrusion, the lower clamping portion is reset.

4. The press-fit assembly according to claim 1, wherein: The lower holding portion is an L-shaped structure, and the free end of the lower holding portion extends toward the cavity of the body.

5. The press-fit assembly according to claim 1, wherein: The connecting portion, the upper clamping portion and the lower clamping portion are respectively formed integrally with the body, and the connecting portion is located above the upper clamping portion and the lower clamping portion.

6. The press-fit assembly according to claim 1, wherein: A plurality of upper clamping parts are arranged on the outer circumference of the same height direction of the main body, and a plurality of lower clamping parts are arranged on the outer circumference of the same height direction of the main body. The upper protrusions and the lower protrusions correspond to each other one by one along the height direction and are arranged in pairs.

7. The press-fit assembly according to claim 6, wherein: The main body is provided with a plurality of openings distributed at intervals, and the upper clamping parts and the lower clamping parts arranged in pairs are respectively formed integrally by stamping from the openings corresponding to the main body.

8. The press-fit assembly according to claim 1, wherein: The main body also includes an avoidance portion arranged below the connecting portion, and a clamping portion and an accommodating portion are arranged on the outer peripheral surface of the terminal. The connecting portion is accommodated in the accommodating portion of the terminal, and the clamping portion of the terminal is clamped in the avoidance portion to limit the displacement of the main body along the height direction.

9. The press-fit assembly according to claim 2, wherein: At least one limiting groove is provided on the outer peripheral surface of the sliding part; After the sliding portion of the terminal slides downward in the cavity of the body, the upper clamping portion and / or the lower clamping portion is clamped in the corresponding limiting groove to limit the movement of the terminal in the height direction.

10. The press-fit assembly according to claim 9, wherein: The upper clamping portion and the lower clamping portion are both L-shaped structures, and the free ends of the upper clamping portion and the free ends of the lower clamping portion extend toward the cavity of the main body, the upper protrusion is the top of the L-shaped structure of the upper clamping portion, and the lower protrusion is the top of the L-shaped structure of the lower clamping portion, and the free ends of the upper clamping portion and the lower clamping portion abut against at least one of the limit grooves to limit the movement of the terminal in the height direction.

11. The press-fit assembly according to claim 9, wherein: Two limiting grooves are arranged on the outer peripheral surface of the terminal. After the sliding part of the terminal slides downward in the cavity of the body, the upper clamping part extends toward the cavity of the body and abuts against one of the limiting grooves, and the lower clamping part is located at the lower end of the body and extends toward the cavity of the body to abut against the other limiting groove.

12. The press-fit assembly according to claim 11, wherein: Before the sliding part of the terminal slides downward, the outer diameter of the lower protrusion of the lower clamping part is less than or equal to the outer diameter of the convex rib; the lower protrusion of the lower clamping part is part of an annular structure, and after the sliding part of the terminal slides downward, the outer diameter of the lower protrusion of the lower clamping part is greater than the outer diameter of the convex rib.

13. The press-fit assembly according to claim 12, wherein: When the sliding portion of the terminal slides downward in the cavity of the body, the lower clamping portion is pushed by the sliding portion to rotate outward with the convex rib as a fulcrum and then clamped on the lower surface of the circuit board.

14. The press-fit assembly according to claim 13, wherein: Compared with the rest of the lower clamping part and the convex rib, the lower protrusion of the lower clamping part has the largest outer diameter, the lower end of the lower clamping part has the smallest outer diameter and is a free end. After the sliding part slides downward, the sliding part protrudes out of the lower end of the lower clamping part.

15. An electronic device, characterized in that: include: A shell, a circuit board and a press-fit assembly as described in any one of claims 1 to 14, wherein the circuit board is provided with a through hole and a conductive contact member located at the through hole and electrically connected to the press-fit assembly, the terminal of the press-fit assembly is embedded in the shell and is provided with a docking portion exposed outside the shell, and the shell is fixedly connected to the circuit board through the press-fit assembly.

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