Electric connector

Abstract

An electric connector is used for being connected with a power source machine shell, and the power source machine shell is provided with a positioning hole. The electric connector comprises an insulating body, a conductive terminal, a connecting piece and a cushioning gasket, the insulating body is provided with a first positioning through hole, the first positioning through hole comprises a first hole section and a second hole section, the first hole section is arranged at one end, deviating from the power supply shell, of the second hole section along the axial direction, the radial width of the first hole section is larger than that of the second hole section, and an abutting part is formed at the joint of the first hole section and the second hole section; the cushioning gasket is mounted in the first hole section and abuts against the abutting part, and a second positioning through hole is formed in the cushioning gasket; the connecting piece comprises a connecting part and a limiting part, and the connecting part penetrates through the second positioning through hole, the second hole section and the positioning hole; the limiting part abuts against the cushioning gasket, a gap exists between the limiting part and the first hole section, and the projection of the cushioning gasket exceeds the limiting part and is matched with the first hole section in size when observed in the axial direction. According to the electric connector, different fretting effects can be met according to different environments, and abnormity caused by fretting wear is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic devices, in particular to an electric connector. BACKGROUND

[0002] In the field of electronic devices, connecting pieces such as screws are important connecting components between electric connectors and power supply housings. In the traditional installation mode, the connecting pieces are usually directly inserted through the through holes of the electric connectors and fixed by cooperating with the threaded holes of the power supply housings. However, during the operation of the equipment, due to vibration, impact or mechanical load change, the electric connectors need to move slightly to relieve the impact force. However, the fixing effect of the connecting pieces will hinder the displacement of the electric connectors, and the electric connectors will bear a larger force. In addition, the slight displacement of the electric connectors under long-term vibration will also cause wear at the connecting parts of the electric connectors and the connecting pieces, affecting the structural integrity of the electric connectors. CONTENT OF THE UTILITY MODEL

[0003] In view of this, the present application provides an electric connector which can solve at least one of the above technical problems.

[0004] The present application provides an electric connector which can be used to connect a power supply housing, wherein the power supply housing is provided with a positioning hole; the electric connector comprises an insulating body, a conductive terminal, a connecting piece and a shock-absorbing pad, the insulating body is provided with a first positioning through hole, the first positioning through hole comprises a first hole section and a second hole section which are connected in communication, along the axial direction of the electric connector, the first hole section is arranged at one end of the second hole section away from the power supply housing, and the area of the first hole section is greater than that of the second hole section, and the connection part of the first hole section and the second hole section forms an abutting part; the shock-absorbing pad is installed in the first hole section and abuts against the abutting part, the shock-absorbing pad is provided with a second positioning through hole, along the axial direction, the first positioning through hole, the second positioning through hole and the positioning hole are connected in communication; the connecting piece comprises a connecting part and a limiting part which are connected, the connecting part is arranged in the second positioning through hole, the second hole section and the positioning hole, so that the insulating body and the power supply housing are fixed; the limiting part is accommodated in the first hole section and abuts against the surface of the shock-absorbing pad away from the second hole section, there is a gap between the limiting part and the first hole section, and the projection of the shock-absorbing pad exceeds the limiting part and matches the size of the first hole section when viewed along the axial direction.

[0005] Compared with the prior art, the insulating body of the application is assembled with the power supply shell through the cooperation of the first positioning through hole, the connecting piece, the shock absorbing pad and the positioning hole, and stable connection can be achieved. There is a gap between the outer side wall of the limiting portion of the connecting piece and the inner side wall of the first hole section, the shock absorbing pad is arranged on the abutting portion and radially beyond the limiting portion. When the electric connector is subjected to different vibrations, impacts or mechanical load changes, the shock absorbing pad can be deformed in different sizes in the axial direction and the radial direction of the first positioning through hole, and the cooperation gap is arranged to meet the displacement requirements of the electric connector, so that the electric connector can be subjected to different small displacements, reducing or even avoiding the influence of vibrations, impacts or mechanical load changes on the connection stability of the electric connector and the power supply shell. At the same time, the shock absorbing pad also has the effect of assisting the rebound, so that the electric connector after the small displacement can be restored to the initial position and meet the wear caused by the micro-motion friction process. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided.

[0007] Figure 2 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided. Figure 1 Partially exploded perspective view.

[0008] Figure 3 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided. Figure 1 Sectional view along line III-III.

[0009] Figure 4 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided. Figure 1 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided.

[0010] Figure 5 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided. Figure 1 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided.

[0011] Figure 6 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided. Figure 1 The structure schematic diagram of the electric connector and the power supply shell after assembly is provided.

[0012] Explanation of main element symbols:

[0013] 10, electric connector; 20, power supply shell; 201, positioning hole; 202, first mounting through hole;

[0014] 1, insulating body;

[0015] 11, first positioning through hole; 111, first hole section; 1111, gap; 112, second hole section; 113, abutting portion; 114, body portion; 1141, second mounting through hole; 1142, third hole section; 1143, fourth hole section; 115, protruding portion; 116, top surface;

[0016] 2, connecting piece;

[0017] 21, connecting part; 211, mounting section; 212, connecting section; 2121, thread structure; 22, limiting part; 221, auxiliary mounting hole;

[0018] 3, shock-absorbing gasket;

[0019] 31, second positioning through hole;

[0020] 4, bearing piece;

[0021] 41, first part; 42, second part. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments.

[0023] In the field of electronic devices, when the connecting piece connects the electrical connector and the power supply shell, it will hinder the displacement of the electrical connector and wear the connecting part of the electrical connector. Please refer to Figures 1 to 6The application provides an electric connector 10 which can be connected with a power supply shell 20 provided with a positioning hole 201. The electric connector 10 comprises an insulating body 1, a conductive terminal (not shown), a connecting piece 2 and a shock pad 3. The insulating body 1 is provided with a first positioning through hole 11 which comprises a first hole section 111 and a second hole section 112 connected with each other. In the axial direction of the electric connector 10, the first hole section 111 is arranged at the end of the second hole section 112 away from the power supply shell 20, and the area of the first hole section 111 is larger than that of the second hole section 112. The connection part of the first hole section 111 and the second hole section 112 forms an abutting part 113. The shock pad 3 is installed in the first hole section 111 and abuts against the abutting part 113. The shock pad 3 is provided with a second positioning through hole 31. In the axial direction of the electric connector 10, the first positioning through hole 11, the second positioning through hole 31 and the positioning hole 201 are connected with each other. The connecting piece 2 comprises a connecting part 21 and a limiting part 22 connected with each other. The connecting part 21 is arranged in the second positioning through hole 31, the second hole section 112 and the positioning hole 201, so as to fix the insulating body 1 and the power supply shell 20. The limiting part 22 is arranged in the first hole section 111 and abuts against the surface of the shock pad 3 away from the second hole section 112. There is a gap 1111 between the limiting part 22 and the first hole section 111. In the axial direction of the electric connector 10, the projection of the shock pad 3 exceeds the limiting part 22 and matches the size of the first hole section 111. When the shock pad 3 does not vibrate, the connecting piece 2 can be stably supported in the axial and radial directions. When the electric connector 10 is subjected to different vibrations, impacts or mechanical load changes, the electric connector 10 tends to move slightly. The inner wall surface of the first hole section 111 transmits the force to the shock pad 3, and the shock pad 3 deforms in the radial direction. In combination with the arrangement of the gap 1111, the displacement requirement of the electric connector 10 is met, and the stability of the electric connector 10 is improved.

[0024] The connecting piece 2 and the shock-absorbing gasket 3 are simple in structure, easy to manufacture and convenient to install, the insulation body 1 and the power supply shell 20 are assembled through cooperation of the first positioning through hole 11, the connecting piece 2, the shock-absorbing gasket 3 and the positioning hole 201, the insulation body 1 and the power supply shell 20 can be stably connected, and the connection cost is low; in addition, there is a gap 1111 between the outer side wall of the limiting portion 22 of the connecting piece 2 and the inner side wall of the first hole section 111, the shock-absorbing gasket 3 is arranged on the abutting portion 113 and radially beyond the limiting portion 22, when the electric connector 10 is subjected to different vibrations, impacts or mechanical load changes, the shock-absorbing gasket 3 can be deformed in different sizes in the axial direction and the radial direction of the first positioning through hole 11, and the cooperation gap 1111 is arranged to meet the displacement requirement of the electric connector 10, so that the electric connector 10 can be subjected to different micro displacements, thereby reducing or even avoiding the influence of vibrations, impacts or mechanical load changes on the connection stability of the electric connector 10 and the power supply shell 20; at the same time, the shock-absorbing gasket 3 also has the effect of assisting rebound, so that the electric connector 10 subjected to micro displacement can return to the initial position and meet the wear caused by the micro-motion friction process of the electric connector 10.

[0025] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The features in the following embodiments and examples can be combined with each other without conflict.

[0026] In some embodiments, with reference to Figure 2 With Figure 3 The power supply shell 20 includes a plurality of positioning holes 201 and a first mounting through hole 202 penetrating through the power supply shell 20 in the axial direction of the electric connector 10, and the positioning holes 201 can be distributed around the first mounting through hole 202. The number and arrangement position of the positioning holes 201 are not limited in the present application, and can be selected according to actual needs. Optionally, the power supply shell 20 of the present application is provided with four positioning holes 201, and the four positioning holes 201 are symmetrically distributed around the first mounting through hole 202.

[0027] The electric connector 10 abutting against the power supply shell 20 includes an insulation body 1, a connecting piece 2, a shock-absorbing gasket 3 and a carrier 4, wherein the insulation body 1 serves as a mounting base of the connecting piece 2, the shock-absorbing gasket 3 and the carrier 4; the connecting piece 2 is used for connecting the insulation body 1 and the power supply shell 20; the shock-absorbing gasket 3 is sleeved on the outer periphery of at least part of the connecting piece 2, and serves to provide deformation, assist rebound and meet wear; the carrier 4 is used for forming a terminal slot, and the terminal slot can provide a mounting position for a conductive terminal (not shown in the figure), and the electric connector 10 and the power supply shell 20 can be stably connected through cooperation of the connecting piece 2, the shock-absorbing gasket 3, the carrier 4 and the insulation body 1.

[0028] In some embodiments, with reference to Figures 2 to 4, the insulating body 1 specifically comprises a body part 114 and a protruding part 115 connected with each other, the body part 114 is provided with a second mounting through hole 1141 and a first positioning through hole 11 penetrating along the axial direction of the electric connector 10, and the first positioning through hole 11 is distributed around the second mounting through hole 1141. The number and arrangement position of the second mounting through hole 1141 and the first positioning through hole are not limited in the application, and can be selected according to actual needs. Optionally, the body part 114 is provided with one second mounting through hole 1141 and four first positioning through holes 11, when the insulating body 1 is connected with the power supply shell 20, along the axial direction of the electric connector 10, the second mounting through hole 1141 is connected with the first mounting through hole 202 of the power supply shell 20, and along the axial direction of the electric connector 10, the four first positioning through holes 11 are symmetrically distributed around the second mounting through hole 1141, and the first positioning through hole 11 is connected with the positioning hole 201 of the power supply shell 20.

[0029] As an optional technical solution of the application, the radial width of the body part 114 is 36.5 mm, the thickness is 5 mm, the distance between the centers of the two adjacent first positioning through holes 11 is 25.6 mm, and the body part 114 is further provided with a chamfer structure, and the radius of the chamfer structure is 5.45 mm.

[0030] The protruding part 115 is a cylindrical structure, which is arranged on the surface of the body part 114 facing the power supply shell 20, the radial width of the protruding part 115 is less than or equal to the radial width of the first mounting through hole 202, and along the axial direction of the electric connector 10, the second mounting through hole 1141 penetrates through the protruding part 115. When the insulating body 1 is connected with the power supply shell 20, the protruding part can play a foolproof role in the connection process, which is embedded in the first mounting through hole 202 of the power supply shell 20, so as to ensure that the insulating body 1 is correctly connected with the power supply shell 20.

[0031] In some embodiments, the carrier 4 for mounting the conductive terminal is mounted in the second mounting through hole 1141, specifically, please continue to refer to Figure 4 , the second mounting through hole 1141 comprises a third hole section 1142 and a fourth hole section 1143 connected with each other, the radial width of the third hole section 1142 is greater than the radial width of the fourth hole section 1143, and the fourth hole section 1143 is closer to the power supply shell 20 than the third hole section 1142; the carrier 4 comprises a first part 41 and a second part 42 connected with each other, the radial width of the first part 41 is greater than the radial width of the second part 42, and the radial width of the first part 41 is equal to the radial width of the third hole section 1142, and the radial width of the second part 42 is equal to the radial width of the fourth hole section 1143. When the carrier 4 is mounted to the insulating body 1, the second part 42 is mounted into the fourth hole section 1143, and at least part of the first part 41 is mounted into the third hole section 1142, so that the carrier 4 is fixed to the second mounting through hole 1141.

[0032] The terminal groove is used for mounting a conductive terminal such as a signal terminal or a power terminal. After the carrier 4 is mounted to the second mounting through hole 1141, the conductive terminal such as the signal terminal or the power terminal can be exposed to the first mounting through hole 202 along the axial direction of the electric connector 10 through the coaxial first mounting through hole 202 and the second mounting through hole 1141, which facilitates the connection with the cable or the terminal in the power case 20.

[0033] As an optional technical solution of the present application, the distance between the edge of the first hole section 111 and the edge of the chamfer structure of the body part 114 is 0.95 mm, and the distance between the edge of the second hole section 112 and the edge of the chamfer structure of the body part 114 is 2.45 mm.

[0034] Referring to Figure 6 The connecting piece 2 includes a connecting part 21 and a limiting part 22 connected with each other. The radial width of the limiting part 22 is greater than the radial width of the limiting part 22. The connecting part 21 includes a mounting section 211 and a connecting section 212 connected with each other. The radial width of the mounting section 211 is greater than the radial width of the connecting section 212, and the radial width of the connecting section 212 is equal to the radial width of the positioning hole 201. The limiting part 22 and the mounting section 211 are accommodated in the first positioning through hole 11, and the connecting section 212 is connected with the positioning hole 201. The connecting piece 2 is fixed in the positioning hole 201 of the power case 20 through the connecting section 212, and the bottom of the mounting section 211 is arranged on the power case 20. The power case 20 supports the mounting section 211 along the axial direction of the electric connector 10, which can reduce the radial inclination of the connecting piece 2 under stress, and further improve the installation stability of the electric connector 10 and the power case 20.

[0035] The radial width of the limiting part 22 is 6.85 mm to 7 mm, and the height of the limiting part 22 is 1.75 mm to 1.85 mm. The radial width of the mounting section 211 is 3.95 mm to 4.05 mm, and the height of the mounting section 211 is 3.05 mm to 3.15 mm. The parameters of the limiting part 22 and the mounting section 211 of the connecting piece 2 meet the above range, which can ensure the accurate matching of the connecting piece 2 with the first positioning through hole 11 and the positioning hole 201, and improve the assembly efficiency and stability. In a preferred embodiment, the radial width of the limiting part 22 is 7 mm, the height of the limiting part 22 is 1.8 mm, the radial width of the mounting section 211 is 4 mm, and the height of the mounting section 211 is 3.1 mm.

[0036] The outer side wall of the limiting portion 22 and the inner wall surface of the first hole section 111 have a gap 1111 therebetween, the radial width of the gap 1111 being 1mm-1.075mm, and the radial width of the gap 1111 being within the above range, after cooperation with the shock pad 3, the displacement requirement of the electrical connector 10 can be met, so that the electrical connector 10 can have different small displacements, reducing or even avoiding the influence of vibration, impact or mechanical load change on the connection stability of the electrical connector 10 to the power shell 20. In a preferred embodiment, the radial width of the gap 1111 is 1mm.

[0037] Further, the top surface 116 of the limiting portion 22 in the axial direction of the electrical connector 10 is not higher than the opening of the first hole section 111, and the height difference between the top surface 116 of the limiting portion 22 and the opening of the first hole section 111 is 0-0.2mm. The top surface 116 of the limiting portion 22 has a height difference with the opening of the first hole section 111, that is, the limiting portion 22 is completely accommodated in the first hole section 111, not only avoiding the risk of loosening or breaking of the exposed part due to vibration or impact, but also significantly improving the corrosion resistance and durability of the connecting piece 2 by isolating the external environment, such as moisture, dust, corrosive substances, etc., reducing the maintenance requirement. In a preferred embodiment, the height difference is 0.1mm.

[0038] In some embodiments, referring to Figure 6 The outer side wall of the connecting section 212 is provided with a threaded structure 2121, and the connecting section 212 is threadedly connected with the positioning hole 201 through the threaded structure 2121. Further, the surface of the limiting portion 22 away from the mounting section 211 is provided with an auxiliary mounting hole 221, which can be used to quickly install the connecting piece 2 to the first positioning through hole 11 and the positioning hole 201 by means of a tool, so that the installation of the connecting piece 2 is more convenient.

[0039] As an optional technical solution of the present application, the height of the connecting piece 2 is 9.75mm-10.05mm, and the radial width of the auxiliary mounting hole 221 is 1.9mm-2.1mm. The thickness of the shock pad 3 is 1.25mm-1.6mm, and the radial width of the shock pad 3 is 8.9mm-9.05mm. In a preferred embodiment, the thickness of the shock pad 3 is 1.5mm, the radial width of the shock pad 3 is 9mm, and the radial width of the second hole section 112 is 6mm.

[0040] The radial width of the second positioning through hole 31 is equal to the radial width of the mounting section 211, which is 3.9mm-4mm. The radial width of the second positioning through hole 31 is within the above range, which can fit the mounting section 211. When the electric connector 10 is subjected to different vibrations, impacts or mechanical load changes, the force can be transmitted to the shock pad 3. The shock pad 3 can immediately deform in the axial and radial directions of the first positioning through hole 11 to meet the displacement requirements of the electric connector 10. In a preferred embodiment, the radial width of the second positioning through hole 31 is 4mm.

[0041] In actual application, the insulating body 1 is docked with the power supply shell 20, so that the first mounting through hole 202 and the second mounting through hole 1141 are coaxially arranged, and the first positioning through hole 11 and the positioning hole 201 are coaxially arranged. Then the shock pad 3 is installed to the first hole section 111, and the connecting piece 2 connects the second positioning through hole 31 and the positioning hole 201, thereby completing the docking of the insulating body 1 and the power supply shell 20. The connecting piece 2 and the shock pad 3 used in the present application have simple structure, easy manufacturing and convenient installation. The insulating body 1 and the power supply shell 20 are stably connected through the cooperation of the first positioning through hole 11, the connecting piece 2, the shock pad 3 and the positioning hole 201, and the connection cost is low.

[0042] In addition, those skilled in the art should recognize that the above embodiments are only used to illustrate the present application, and are not used as a limitation on the present application. Any appropriate changes and variations to the above embodiments within the spirit and principles of the present application fall within the scope of the present application.

Claims

1. An electric connector for connecting a power supply cabinet, the power supply cabinet being provided with a positioning hole; the electric connector comprising an insulating body and a conductive terminal, the insulating body being provided with a first positioning through hole, the first positioning through hole comprising a first hole section and a second hole section connected in communication, along an axial direction of the electric connector, the first hole section being arranged at an end of the second hole section away from the power supply cabinet, and an area of the first hole section being greater than an area of the second hole section, a connection between the first hole section and the second hole section forming an abutting portion; characterized in that, the electric connector further comprises a connecting piece and a shock absorbing pad, the shock absorbing pad being mounted on the first hole section and abutting against the abutting portion, the shock absorbing pad being provided with a second positioning through hole, along the axial direction, the first positioning through hole, the second positioning through hole and the positioning hole being connected in communication; the connecting piece comprising a connecting portion and a limiting portion connected in communication, the connecting portion being arranged through the second positioning through hole, the second hole section and the positioning hole, so as to fix the insulating body and the power supply cabinet; the limiting portion being accommodated in the first hole section and abutting against a surface of the shock absorbing pad away from the second hole section, a gap being present between the limiting portion and the first hole section, and a projection of the shock absorbing pad, observed along the axial direction, exceeding the limiting portion and matching a size of the first hole section. A radial width of the gap is 1mm-1.075mm.

2. The electrical connector of claim 1, wherein, A thickness of the shock absorbing pad is 1.25mm-1.6mm.

3. The electrical connector of claim 1, wherein, The connecting portion comprises a mounting section and a connecting section connected in communication, the mounting section being accommodated in the second positioning through hole and the second hole section, and the connecting section being connected with the positioning hole.

4. The electrical connector of claim 1, wherein, A radial width of the mounting section is greater than a radial width of the connecting section, and a bottom of the mounting section is arranged on the power supply cabinet.

5. The electrical connector of claim 4, wherein, An outer side wall of the connecting section is provided with a threaded structure, and the connecting section is screwed with the positioning hole through the threaded structure.

6. The electrical connector of claim 4, wherein, A surface of the limiting portion away from the mounting section is provided with an auxiliary mounting hole.

7. The electrical connector of claim 4, wherein, A radial width of the limiting portion is 6.85mm-7mm, and a height of the limiting portion is 1.75mm-1.85mm; a radial width of the mounting section is 3.95mm-4.05mm, and a height of the mounting section is 3.05mm-3.15mm.

8. The electrical connector of claim 4, wherein, The radial width of the mounting section is equal to a radial width of the second positioning through hole.

9. The electrical connector of claim 4, wherein, A radial width of the shock absorbing pad is 8.9mm-9.05mm, and a radial width of the second positioning through hole is 3.9mm-4mm.

10. The electrical connector of claim 1, wherein, ​

Images