Coaxial connector, electric connection module and electronic equipment

Abstract

The invention discloses a coaxial connector, an electric connection module and electronic equipment. The coaxial connector is suitable for being assembled into a mounting hole of a rear cover of electronic equipment. The coaxial connector includes: an outer terminal formed with a central through hole; the insulator is arranged in the central through hole of the outer terminal; an inner terminal held in the outer terminal by the insulator; the inner seal is sleeved on the inner terminal and is used for sealing the central through hole; the outer seal is sleeved on the outer terminal and is used for sealing the mounting hole; and the shielding connecting piece is arranged on the outer terminal and is used for electrically connecting the outer terminal and the rear cover. In the invention, the coaxial connector and the rear cover of the electronic equipment can be assembled together in advance to form an electric connection module. Therefore, the assembling operation of the electronic equipment is simplified, and the airtight performance and the electromagnetic shielding performance of the electronic equipment can be ensured.

Description

Technical Field

[0001] The present invention relates to a coaxial connector, an electrical connection module including the coaxial connector, and an electronic device including the electrical connection module. Background Art

[0002] In the prior art, an in-vehicle camera typically includes a front cover, a rear cover, a circuit board, and a coaxial connector. The circuit board and coaxial connector are assembled in the front cover. The rear cover is assembled to the front cover and has a through-hole formed to allow the coaxial connector to pass through. To ensure the airtightness of the camera, sealant is usually poured into the gap between the coaxial connector and the rear cover to achieve a seal between the two. This makes camera assembly difficult and expensive. In addition, in the prior art, the outer terminals of the coaxial connector do not make electrical contact with the rear cover, or the electrical contact is poor, which reduces the electromagnetic shielding performance of the coaxial connector. Summary of the Invention

[0003] The purpose of the present invention is to solve at least one aspect of the above-mentioned problems and defects in the prior art.

[0004] According to one aspect of the present invention, a coaxial connector is provided. The coaxial connector is adapted to be assembled into a mounting hole in the rear cover of an electronic device. The coaxial connector includes: an outer terminal having a central through-hole; an insulator disposed in the central through-hole of the outer terminal; an inner terminal retained in the outer terminal by the insulator; an inner seal fitted over the inner terminal for sealing the central through-hole; an outer seal fitted over the outer terminal for sealing the mounting hole; and a shield connector mounted on the outer terminal for electrically connecting the outer terminal to the rear cover.

[0005] According to an exemplary embodiment of the present invention, the shielding connector includes: an annular body, which is mounted on the outer terminal; an inner spring piece, which is connected to the inner periphery of the annular body; and an outer spring piece, which is connected to the outer periphery of the annular body, the inner spring piece is in electrical contact with the outer terminal, and the outer spring piece is used to electrically contact with the back cover to electrically connect the outer terminal to the back cover.

[0006] According to another exemplary embodiment of the present invention, the shielding connector further includes an elastic buckle connected to the outer periphery of the annular body and formed with a slot. A protrusion is formed on the outer terminal, and the protrusion engages with the slot on the elastic buckle to secure the shielding connector to the outer terminal.

[0007] According to another exemplary embodiment of the present invention, the annular body has a front surface and a rear surface opposite to each other in the axial direction of the central through hole, the inner spring sheet and the outer spring sheet extend rearward from the rear surface of the annular body, and the elastic buckle extends forward from the front surface of the annular body.

[0008] According to another exemplary embodiment of the present invention, the shielding connector includes a plurality of outer spring pieces, which are spaced apart in the circumferential direction of the annular body and are used to simultaneously make electrical contact with the inner cylindrical portion of the rear cover.

[0009] According to another exemplary embodiment of the present invention, the shielding connector includes a plurality of inner spring sheets and a plurality of elastic buckles, and the plurality of inner spring sheets and the plurality of elastic buckles are respectively opposite to each other in the radial direction of the annular body; the plurality of elastic buckles are spaced apart in the circumferential direction of the annular body and are spaced apart from the outer spring sheets in the circumferential direction of the annular body.

[0010] According to another exemplary embodiment of the present invention, the outer terminal includes: a base portion; a boss portion formed on the rear surface of the base portion; and a cylindrical body extending rearward from the rear surface of the boss portion, the annular body of the shielding connector is sleeved on the boss portion, the outer seal is sleeved on the cylindrical body, and the protrusion is formed on the outer peripheral surface of the base portion.

[0011] According to another exemplary embodiment of the present invention, a groove corresponding to the inner elastic piece of the shielding connector is formed on the outer circumferential surface of the boss portion, and the inner elastic piece of the shielding connector is positioned in the groove and electrically contacts the bottom surface of the groove.

[0012] According to another exemplary embodiment of the present invention, when the elastic buckle of the shielding connector is locked onto the protrusion of the base portion, the front surface of the annular body of the shielding connector rests on the rear surface of the base portion.

[0013] According to another exemplary embodiment of the present invention, the outer seal is adapted to be radially squeezed between the inner wall surface of the mounting hole of the rear cover and the outer peripheral surface of the cylindrical body of the outer terminal to achieve sealing therebetween; an outer positioning protrusion is formed on the outer peripheral surface of the cylindrical body, and the front and rear ends of the outer seal are adapted to be respectively pressed against the rear surface of the boss portion and the outer positioning protrusion to axially position the outer seal.

[0014] According to another exemplary embodiment of the present invention, a protruding plug pin is formed on the front surface of the base portion of the external terminal, and the plug pin is suitable for being plugged into a first plug hole on a circuit board to electrically connect the external terminal to the circuit board.

[0015] According to another exemplary embodiment of the present invention, a soldering pad is formed on the front surface of the base portion of the external terminal, and the soldering pad is suitable for being soldered to the circuit board in a surface mounting manner.

[0016] According to another exemplary embodiment of the present invention, a front end of the inner terminal extends from the insulator and the outer terminal and is adapted to be plugged into a second insertion hole on the circuit board to electrically connect the inner terminal to the circuit board.

[0017] According to another exemplary embodiment of the present invention, the front end of the inner terminal is suitable for being soldered to the circuit board in a surface mounting manner.

[0018] According to another exemplary embodiment of the present invention, a plurality of axially extending ribs are formed on the outer circumferential surface of the insulator, and the plurality of ribs are spaced apart in the circumferential direction of the insulator; the ribs on the insulator are interference fit with the inner wall surface of the outer terminal to fix the insulator in the central through hole of the outer terminal.

[0019] According to another exemplary embodiment of the present invention, the central through hole has an insertion opening located in the base portion, and a plurality of limiting protrusions are formed on the front surface of the base portion, and the plurality of limiting protrusions are spaced around the insertion opening and protrude toward the insertion opening; a positioning flange is formed at the front end of the insulator, and a positioning step is formed in the insertion opening, and the positioning flange of the insulator is located in the insertion opening and is axially positioned between the limiting protrusion and the positioning step.

[0020] According to another exemplary embodiment of the present invention, the positioning flange of the insulator has a front side and a rear side that are opposite in the axial direction of the central through hole, and the positioning step abuts against the rear side of the positioning flange of the insulator; the limiting protrusion is formed by stamping after the insulator is inserted into the central through hole and abuts against the front side of the positioning flange of the insulator.

[0021] According to another exemplary embodiment of the present invention, the inner seal is radially squeezed between the inner circumferential surface of the outer terminal and the outer circumferential surface of the inner terminal to achieve sealing therebetween; an inner positioning protrusion is formed on the inner circumferential surface of the outer terminal, and the front and rear ends of the inner seal are respectively abutted against the rear end surface of the insulator and the inner positioning protrusion to axially position the inner seal.

[0022] According to another aspect of the present invention, an electrical connection module is provided, comprising: a rear cover formed with a mounting hole; and the aforementioned coaxial connector inserted into the mounting hole.

[0023] According to an exemplary embodiment of the present invention, the back cover includes a peripheral wall and a rear end wall connected to the rear end of the peripheral wall, an inner cylindrical portion is formed on the inner side of the rear end wall, and the mounting hole passes through the inner cylindrical portion and the rear end wall; the outer seal of the coaxial connector is radially squeezed between the inner peripheral surface of the inner cylindrical portion and the outer peripheral surface of the cylindrical body of the outer terminal to achieve sealing between the two; the outer spring piece of the shielding connector of the coaxial connector is in electrical contact with the outer peripheral surface of the inner cylindrical portion to electrically connect the outer terminal and the back cover.

[0024] According to another exemplary embodiment of the present invention, an outer cylindrical portion is formed on the outer side of the rear end wall, the mounting hole is axially connected to the inner cavity of the outer cylindrical portion, and the rear ends of the outer terminal and the inner terminal extend into the inner cavity of the outer cylindrical portion to respectively mate with the mating outer terminal and the mating inner terminal of the mating connector inserted into the inner cavity of the outer cylindrical portion.

[0025] According to another exemplary embodiment of the present invention, an annular groove surrounding the inner cylinder portion is formed on the inner side of the rear end wall, and the outer elastic piece of the shielding connector extends into the annular groove.

[0026] According to another exemplary embodiment of the present invention, the electrical connection module further includes: a circuit board disposed in the rear cover and electrically connected to the outer terminals and the inner terminals of the coaxial connector.

[0027] According to another exemplary embodiment of the present invention, a first socket and a second socket are formed on the circuit board, and the plug pins of the external terminal and the front end of the internal terminal are respectively plugged into and welded into the first socket and the second socket to be electrically connected to the circuit board.

[0028] According to another exemplary embodiment of the present invention, a first solder pad and a second solder pad are formed on the circuit board, and the base portion of the outer terminal and the front end of the inner terminal are soldered to the first solder pad and the second solder pad, respectively, in a surface mounting manner.

[0029] According to another exemplary embodiment of the present invention, supporting bosses are respectively formed at the four corners on the inner side of the rear end wall of the rear cover, and the circuit board is supported on the supporting bosses; a positioning column is formed on at least one of a pair of diagonally opposite supporting bosses, and a positioning through hole corresponding to the positioning column is formed on the circuit board, and the positioning column is inserted into the positioning through hole to position the circuit board.

[0030] According to another exemplary embodiment of the present invention, connection holes are respectively formed on another pair of diagonally opposite supporting bosses of the back cover, and through holes corresponding to the connection holes are formed on the circuit board; the electrical connection module also includes a threaded connector, which passes through the through hole on the circuit board and is threadedly connected to the connection hole on the back cover to fix the circuit board to the back cover.

[0031] According to another aspect of the present invention, an electronic device is provided, comprising: an electrical connection module; and a front cover assembled to a rear cover of the electrical connection module.

[0032] According to an exemplary embodiment of the present invention, the electronic device is a camera.

[0033] In the aforementioned exemplary embodiments of the present invention, the coaxial connector and the back cover of the electronic device can be pre-assembled together to form an electrical connection module. This simplifies the assembly operation of the electronic device and ensures the airtightness and electromagnetic shielding performance of the electronic device.

[0034] Other objects and advantages of the present invention will become apparent from the following description of the present invention with reference to the accompanying drawings, which will help to provide a comprehensive understanding of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the rear side;

[0036] Figure 2 A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side;

[0037] Figure 3 An exploded schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side;

[0038] Figure 4 An axial cross-sectional view showing an electrical connection module according to an exemplary embodiment of the present invention;

[0039] Figure 5 An exploded schematic diagram showing a coaxial connector and a rear cover of an electrical connection module according to an exemplary embodiment of the present invention;

[0040] Figure 6 A schematic diagram showing the assembly of a coaxial connector and a rear cover of an electrical connection module according to an exemplary embodiment of the present invention;

[0041] Figure 7A perspective schematic diagram showing a coaxial connector of an electrical connection module according to an exemplary embodiment of the present invention;

[0042] Figure 8 An axial cross-sectional view showing a coaxial connector of an electrical connection module according to an exemplary embodiment of the present invention;

[0043] Figure 9 An exploded schematic diagram showing a coaxial connector according to an exemplary embodiment of the present invention, wherein a shielding connector and an outer seal are not shown;

[0044] Figure 10 An exploded schematic diagram of a coaxial connector according to an exemplary embodiment of the present invention is shown, wherein a shield connection member and an outer seal are shown. DETAILED DESCRIPTION

[0045] The technical solution of the present invention will be further described in detail below through examples and in conjunction with the accompanying drawings. In the specification, the same or similar reference numerals indicate the same or similar components. The following description of the embodiments of the present invention with reference to the accompanying drawings is intended to explain the overall inventive concept of the present invention and should not be construed as limiting the present invention.

[0046] In addition, in the following detailed description, for ease of explanation, numerous specific details are set forth to provide a comprehensive understanding of the disclosed embodiments. However, it is apparent that one or more embodiments can be practiced without these specific details. In other cases, well-known structures and devices are shown in diagrammatic form to simplify the accompanying drawings.

[0047] According to one general technical concept of the present invention, a coaxial connector is provided. The coaxial connector is adapted to be assembled into a mounting hole of a rear cover of an electronic device. The coaxial connector includes: an outer terminal having a central through-hole; an insulator disposed in the central through-hole of the outer terminal; an inner terminal retained in the outer terminal by the insulator; an inner seal fitted over the inner terminal for sealing the central through-hole; an outer seal fitted over the outer terminal for sealing the mounting hole; and a shield connector mounted on the outer terminal for electrically connecting the outer terminal to the rear cover.

[0048] According to another general technical concept of the present invention, an electrical connection module is provided, comprising: a rear cover formed with a mounting hole; and the aforementioned coaxial connector inserted into the mounting hole.

[0049] According to another general technical concept of the present invention, there is provided an electronic device comprising: an electrical connection module; and a front cover assembled to a rear cover of the electrical connection module.

[0050] Figure 1 A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the rear side; Figure 2 A perspective schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side; Figure 3 An exploded schematic diagram showing an electrical connection module according to an exemplary embodiment of the present invention when viewed from the front side;

[0051] Figure 4 An axial cross-sectional view showing an electrical connection module according to an exemplary embodiment of the present invention; Figure 5 An exploded schematic diagram showing a coaxial connector 1 and a rear cover 2 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 6 A schematic diagram showing the assembly of a coaxial connector 1 and a rear cover 2 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 7 A perspective schematic diagram showing a coaxial connector 1 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 8 An axial cross-sectional view showing a coaxial connector 1 of an electrical connection module according to an exemplary embodiment of the present invention; Figure 9 An exploded schematic diagram showing a coaxial connector 1 according to an exemplary embodiment of the present invention, wherein the shielding connector 16 and the outer seal 15 are not shown; Figure 10 An exploded schematic diagram of a coaxial connector 1 according to an exemplary embodiment of the present invention is shown, wherein the shielding connector 16 and the outer seal 15 are shown.

[0052] like Figures 1 to 10 As shown, in an exemplary embodiment of the present invention, a coaxial connector 1 is disclosed. The coaxial connector 1 is suitable for being assembled into the mounting hole 201 of the back cover 2 of an electronic device (for example, a car camera). The coaxial connector 1 includes: an outer terminal 11, an inner terminal 12, an insulator 13, an inner seal 14, an outer seal 15 and a shielding connector 16. A central through hole 101 is formed in the outer terminal 11. The insulator 13 is arranged in the central through hole 101 of the outer terminal 11. The inner terminal 12 is retained in the outer terminal 11 by the insulator 13. The inner seal 14 is sleeved on the inner terminal 12 for sealing the central through hole 101. The outer seal 15 is sleeved on the outer terminal 11 for sealing the mounting hole 201. The shielding connector 16 is mounted on the outer terminal 11 for electrically connecting the outer terminal 11 and the back cover 2.

[0053] like Figures 1 to 10As shown, in the illustrated embodiment, the shielding connector 16 includes an annular body 160, an inner spring piece 161, and an outer spring piece 162. The annular body 160 is sleeved onto the outer terminal 11. The inner spring piece 161 is connected to the inner periphery of the annular body 160. The outer spring piece 162 is connected to the outer periphery of the annular body 160. The inner spring piece 161 is electrically connected to the outer terminal 11, and the outer spring piece 162 is used to electrically contact the rear cover 2 to electrically connect the outer terminal 11 to the rear cover 2.

[0054] like Figures 1 to 10 As shown, in the illustrated embodiment, the shielding connector 16 further includes an elastic buckle 163, which is connected to the outer periphery of the annular body 160 and formed with a locking groove 163a. ​​A protrusion 111a is formed on the outer terminal 11, and the protrusion 111a engages with the locking groove 163a on the elastic buckle 163 to fix the shielding connector 16 to the outer terminal 11.

[0055] like Figures 1 to 10 As shown, in the illustrated embodiment, the annular body 160 has a front surface and a rear surface that are opposite in the axial direction of the central through hole 101, the inner spring piece 161 and the outer spring piece 162 extend rearward from the rear surface of the annular body 160, and the elastic buckle 163 extends forward from the front surface of the annular body 160.

[0056] like Figures 1 to 10 As shown, in the illustrated embodiment, the shielding connector 16 includes a plurality of outer spring pieces 162 , which are spaced apart in the circumferential direction of the annular body 160 for simultaneously making electrical contact with the inner cylindrical portion 22 of the rear cover 2 .

[0057] like Figures 1 to 10 As shown, in the illustrated embodiment, the shielding connector 16 includes a plurality of inner spring pieces 161 and a plurality of elastic buckles 163, wherein the plurality of inner spring pieces 161 and the plurality of elastic buckles 163 are respectively opposed to each other in the radial direction of the annular body 160. The plurality of elastic buckles 163 are spaced apart in the circumferential direction of the annular body 160 and are spaced apart from the outer spring pieces 162 in the circumferential direction of the annular body 160.

[0058] like Figures 1 to 10 As shown, in the illustrated embodiment, the outer terminal 11 includes a cylindrical body 110, a base portion 111, and a boss portion 112. The boss portion 112 is formed on the rear surface of the base portion 111. The cylindrical body 110 extends rearward from the rear surface of the boss portion 112. The annular body 160 of the shielding connector 16 is fitted onto the boss portion 112, the outer seal 15 is fitted onto the cylindrical body 110, and a protrusion 111a is formed on the outer circumferential surface of the base portion 111.

[0059] like Figures 1 to 10As shown, in the illustrated embodiment, a groove 112a corresponding to the inner spring piece 161 of the shielding connector 16 is formed on the outer peripheral surface of the boss portion 112, and the inner spring piece 161 of the shielding connector 16 is positioned in the groove 112a and electrically contacts the bottom surface of the groove 112a.

[0060] like Figures 1 to 10 As shown, in the illustrated embodiment, when the elastic buckle 163 of the shielding connector 16 is locked onto the protrusion 111 a of the base portion 111 , the front surface of the annular body 160 of the shielding connector 16 abuts against the rear surface of the base portion 111 .

[0061] like Figures 1 to 10 As shown, in the illustrated embodiment, the outer seal 15 is adapted to be radially compressed between the inner wall surface of the mounting hole 201 of the rear cover 2 and the outer peripheral surface of the cylindrical body 110 of the outer terminal 11 to achieve a seal therebetween. An outer positioning protrusion 11b is formed on the outer peripheral surface of the cylindrical body 110, and the front and rear ends of the outer seal 15 are adapted to abut against the rear surface of the boss portion 112 and the outer positioning protrusion 11b, respectively, to axially position the outer seal 15.

[0062] like Figures 1 to 10 As shown, in the illustrated embodiment, a protruding plug pin 11 a is formed on the front surface of the base portion 111 of the external terminal 11, and the plug pin 11 a is suitable for being plugged into the first plug hole 31 a on the circuit board 3 to electrically connect the external terminal 11 to the circuit board 3.

[0063] However, the present invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment of the present invention, a solder pad can be formed on the front surface of the base portion 111 of the external terminal 11, and the solder pad is suitable for being soldered to the circuit board 3 in a surface mount manner.

[0064] like Figures 1 to 10 As shown, in the illustrated embodiment, the front end 12 a of the inner terminal 12 extends from the insulator 13 and the outer terminal 11 and is adapted to be plugged into the second insertion hole 32 a on the circuit board 3 to electrically connect the inner terminal 12 to the circuit board 3 .

[0065] However, the present invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment of the present invention, the front end 12 a of the inner terminal 12 is suitable for being soldered to the circuit board 3 in a surface mounting manner.

[0066] like Figures 1 to 10 As shown, in the illustrated embodiment, a plurality of axially extending ribs 13a are formed on the outer circumferential surface of the insulator 13. The ribs 13a are spaced apart in the circumferential direction of the insulator 13. The ribs 13a on the insulator 13 have an interference fit with the inner wall surface of the outer terminal 11 to secure the insulator 13 in the central through hole 101 of the outer terminal 11.

[0067] like Figures 1 to 10 As shown, in the illustrated embodiment, the central through hole 101 has an insertion opening 101a located in the base portion 111. A plurality of positioning protrusions 11c are formed on the front surface of the base portion 111. The plurality of positioning protrusions 11c are spaced apart around the insertion opening 101a and protrude toward the insertion opening 101a. A positioning flange 13b is formed at the front end of the insulator 13, and a positioning step 11e is formed in the insertion opening 101a. The positioning flange 13b of the insulator 13 is located in the insertion opening 101a and is axially positioned between the positioning protrusion 11c and the positioning step 11e.

[0068] like Figures 1 to 10 As shown, in the illustrated embodiment, the positioning flange 13b of the insulator 13 has a front side and a rear side that are opposite in the axial direction of the central through hole 101, and the positioning step 11e abuts against the rear side of the positioning flange 13b of the insulator 13. The limiting protrusion 11c is formed by stamping after the insulator 13 is inserted into the central through hole 101 and abuts against the front side of the positioning flange 13b of the insulator 13.

[0069] like Figures 1 to 10 As shown, in the illustrated embodiment, the inner seal 14 is radially squeezed between the inner circumference of the outer terminal 11 and the outer circumference of the inner terminal 12 to achieve a seal therebetween. An inner positioning protrusion 11d is formed on the inner circumference of the outer terminal 11, and the front and rear ends of the inner seal 14 abut against the rear end surface of the insulator 13 and the inner positioning protrusion 11d, respectively, to axially position the inner seal 14.

[0070] like Figures 1 to 10 As shown, in another exemplary embodiment of the present invention, an electrical connection module is also disclosed. The electrical connection module includes: a coaxial connector 1 and a back cover 2. The back cover 2 is formed with a mounting hole 201. The coaxial connector 1 is inserted into the mounting hole 201 of the back cover 2.

[0071] like Figures 1 to 10 As shown, in the illustrated embodiment, the back cover 2 includes a peripheral wall 20 and a rear end wall 21 connected to the rear end of the peripheral wall 20. An inner cylindrical portion 22 is formed on the inner side of the rear end wall 21, and a mounting hole 201 extends through the inner cylindrical portion 22 and the rear end wall 21. The outer seal 15 of the coaxial connector 1 is radially squeezed between the inner circumferential surface of the inner cylindrical portion 22 and the outer circumferential surface of the cylindrical body 110 of the outer terminal 11 to achieve a seal therebetween. The outer spring piece 162 of the shield connector 16 of the coaxial connector 1 is in electrical contact with the outer circumferential surface of the inner cylindrical portion 22 to electrically connect the outer terminal 11 and the back cover 2.

[0072] like Figures 1 to 10As shown, in the illustrated embodiment, an outer cylinder portion 23 is formed on the outer side of the rear end wall 21, the mounting hole 201 is axially connected to the inner cavity 203 of the outer cylinder portion 23, and the rear ends of the outer terminal 11 and the inner terminal 12 extend into the inner cavity 203 of the outer cylinder portion 23 to mate with the mating outer terminal and the mating inner terminal of the mating connector inserted into the inner cavity 203 of the outer cylinder portion 23, respectively.

[0073] like Figures 1 to 10 As shown, in the illustrated embodiment, an annular groove 25 surrounding the inner cylinder portion 22 is formed on the inner side of the rear end wall 21 , and the outer elastic piece 162 of the shielding connector 16 extends into the annular groove 25 .

[0074] like Figures 1 to 10 As shown, in the illustrated embodiment, the electrical connection module further includes a circuit board 3 , which is disposed in the rear cover 2 and electrically connected to the outer terminals 11 and the inner terminals 12 of the coaxial connector 1 .

[0075] like Figures 1 to 10 As shown, in the illustrated embodiment, a first jack 31a and a second jack 32a are formed on the circuit board 3, and the plug pin 11a of the outer terminal 11 and the front end 12a of the inner terminal 12 of the coaxial connector 1 are respectively plugged into and soldered into the first jack 31a and the second jack 32a to be electrically connected to the circuit board 3.

[0076] However, the present invention is not limited to the illustrated embodiment. For example, in another exemplary embodiment of the present invention, a first solder pad (not shown) and a second solder pad (not shown) can be formed on the circuit board 3, and the base portion 111 of the external terminal 11 and the front end 12a of the internal terminal 12 are suitable for being soldered to the first solder pad and the second solder pad, respectively, in a surface mount manner.

[0077] like Figures 1 to 10 As shown, in the illustrated embodiment, support bosses 24 are formed at the four corners of the inner side of the rear end wall 21 of the rear cover 2, and the circuit board 3 is supported on the support bosses 24. At least one of the pair of diagonally opposite support bosses 24 is formed with a positioning post 24a, and the circuit board 3 is formed with a positioning through hole 3a corresponding to the positioning post 24a. The positioning post 24a is inserted into the positioning through hole 3a to position the circuit board 3.

[0078] like Figures 1 to 10 As shown, in the illustrated embodiment, connection holes 24b are respectively formed on another pair of diagonally opposed support bosses 24 of the back cover 2, and through holes 3b corresponding to the connection holes 24b are formed on the circuit board 3. The electrical connection module also includes a threaded connector (not shown, such as a screw), which passes through the through holes 3b on the circuit board 3 and is threadedly connected to the connection holes 24b on the back cover 2 to secure the circuit board 3 to the back cover 2.

[0079] like Figures 1 to 10 As shown, in another exemplary embodiment of the present invention, an electronic device is disclosed, which includes an electrical connection module and a front cover (not shown), wherein the front cover is assembled to the rear cover 2 of the electrical connection module.

[0080] like Figures 1 to 10 As shown, in the illustrated embodiment, the electronic device may be a vehicle-mounted camera or other types of electronic devices.

[0081] Those skilled in the art will understand that the embodiments described above are exemplary and can be improved by those skilled in the art. The structures described in various embodiments can be freely combined without causing any conflicts in structure or principle. These changes should fall within the scope of protection of the present invention.

[0082] Although the present invention has been described in conjunction with the accompanying drawings, the embodiments disclosed in the drawings are intended to exemplify the preferred embodiments of the present invention and should not be construed as limiting the present invention.

[0083] Although some embodiments of the general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the claims and their equivalents.

[0084] It should be noted that the word "comprising" does not exclude other elements or steps, and the word "a" or "an" does not exclude a plurality. In addition, any element reference in the claims should not be construed as limiting the scope of the invention.

Claims

1. A coaxial connector adapted to be assembled into a mounting hole (201) of a rear cover (2) of an electronic device, characterized in that: The coaxial connector (1) comprises: An outer terminal (11) is formed with a central through hole (101); an insulator (13) disposed in the central through hole (101) of the external terminal (11); an inner terminal (12) held in the outer terminal (11) by the insulator (13); An inner seal (14) is sleeved on the inner terminal (12) and is used to seal the central through hole (101); an outer seal (15) mounted on the outer terminal (11) and used for sealing the mounting hole (201); and A shielding connector (16) is mounted on the outer terminal (11) and is used to electrically connect the outer terminal (11) and the back cover (2).

2. The coaxial connector according to claim 1, wherein: The shielding connector (16) comprises: An annular body (160) is sleeved on the outer terminal (11); An inner spring sheet (161) connected to the inner periphery of the annular body (160); and The outer spring piece (162) is connected to the outer periphery of the annular body (160). The inner spring piece (161) is in electrical contact with the outer terminal (11), and the outer spring piece (162) is used to be in electrical contact with the rear cover (2) to electrically connect the outer terminal (11) to the rear cover (2).

3. The coaxial connector according to claim 2, wherein: The shielding connector (16) further comprises: The elastic buckle (163) is connected to the outer periphery of the annular body (160) and is formed with a clamping groove (163a). A protrusion (111a) is formed on the outer terminal (11), and the protrusion (111a) engages with a slot (163a) on the elastic buckle (163) to fix the shielding connector (16) to the outer terminal (11).

4. The coaxial connector according to claim 3, wherein: The annular body (160) has a front surface and a rear surface that are opposite to each other in the axial direction of the central through hole (101); the inner elastic sheet (161) and the outer elastic sheet (162) extend rearward from the rear surface of the annular body (160); and the elastic buckle (163) extends forward from the front surface of the annular body (160).

5. The coaxial connector according to claim 3, wherein: The shielding connector (16) includes a plurality of outer spring pieces (162), which are spaced apart in the circumferential direction of the annular body (160) and are used for simultaneously electrically contacting the inner cylindrical portion (22) of the rear cover (2).

6. The coaxial connector according to claim 3, wherein: The shielding connector (16) comprises a plurality of inner spring sheets (161) and a plurality of elastic buckles (163), wherein the plurality of inner spring sheets (161) and the plurality of elastic buckles (163) are respectively opposite to each other in the radial direction of the annular body (160); The plurality of elastic buckles (163) are distributed at intervals in the circumferential direction of the annular body (160) and are spaced apart from the outer elastic sheet (162) in the circumferential direction of the annular body (160).

7. The coaxial connector according to claim 4, wherein: The external terminal (11) comprises: a base portion (111); a boss portion (112) formed on the rear surface of the base portion (111); and The cylindrical body (110) extends rearward from the rear surface of the boss portion (112), the annular body (160) of the shielding connector (16) is mounted on the boss portion (112), the outer seal (15) is mounted on the cylindrical body (110), and the protrusion (111a) is formed on the outer peripheral surface of the base portion (111).

8. The coaxial connector according to claim 7, wherein: A groove (112a) corresponding to the inner elastic piece (161) of the shielding connector (16) is formed on the outer peripheral surface of the boss portion (112), and the inner elastic piece (161) of the shielding connector (16) is positioned in the groove (112a) and is in electrical contact with the bottom surface of the groove (112a).

9. The coaxial connector according to claim 7, wherein: When the elastic buckle (163) of the shielding connector (16) is locked onto the protrusion (111a) of the base portion (111), the front surface of the annular body (160) of the shielding connector (16) rests on the rear surface of the base portion (111).

10. The coaxial connector according to claim 7, wherein: The outer seal (15) is adapted to be radially squeezed between the inner wall surface of the mounting hole (201) of the rear cover (2) and the outer peripheral surface of the cylindrical body (110) of the outer terminal (11) to achieve a seal therebetween; An external positioning protrusion (11b) is formed on the outer peripheral surface of the cylindrical body (110), and the front end and the rear end of the external seal (15) are adapted to be respectively pressed against the rear surface of the boss portion (112) and the external positioning protrusion (11b) to axially position the external seal (15).

11. The coaxial connector according to claim 7, wherein: A protruding plug pin (11a) is formed on the front surface of the base portion (111) of the external terminal (11), and the plug pin (11a) is suitable for being plugged into a first plug hole (31a) on a circuit board (3) to electrically connect the external terminal (11) to the circuit board (3); and / or A soldering pad is formed on the front surface of the base portion (111) of the external terminal (11), and the soldering pad is suitable for being soldered to the circuit board (3) in a surface mounting manner.

12. The coaxial connector according to claim 7, wherein: The front end (12a) of the inner terminal (12) extends from the insulator (13) and the outer terminal (11) and is adapted to be plugged into a second insertion hole (32a) on the circuit board (3) to electrically connect the inner terminal (12) to the circuit board (3); and / or The front end (12a) of the inner terminal (12) is suitable for being soldered to the circuit board (3) in a surface mounting manner.

13. The coaxial connector according to claim 7, wherein: A plurality of axially extending convex ribs (13a) are formed on the outer peripheral surface of the insulator (13), and the plurality of convex ribs (13a) are spaced apart and distributed in the circumferential direction of the insulator (13); The convex rib (13a) on the insulator (13) is interference-fitted with the inner wall surface of the external terminal (11) to fix the insulator (13) in the central through hole (101) of the external terminal (11).

14. The coaxial connector according to claim 13, wherein: The central through hole (101) has an insertion opening (101a) located in the base portion (111), and a plurality of limiting protrusions (11c) are formed on the front surface of the base portion (111), and the plurality of limiting protrusions (11c) are spaced around the insertion opening (101a) and protrude toward the insertion opening (101a); A positioning flange (13b) is formed at the front end of the insulator (13), and a positioning step (11e) is formed in the insertion port (101a). The positioning flange (13b) of the insulator (13) is located in the insertion port (101a) and is axially positioned between the limiting protrusion (11c) and the positioning step (11e).

15. The coaxial connector according to claim 14, wherein: The positioning flange (13b) of the insulator (13) has a front side and a rear side that are opposite in the axial direction of the central through hole (101), and the positioning step (11e) abuts against the rear side of the positioning flange (13b) of the insulator (13); The limiting protrusion (11c) is formed by stamping after the insulator (13) is inserted into the central through hole (101) and abuts against the front side of the positioning flange (13b) of the insulator (13).

16. The coaxial connector according to claim 7, wherein: The inner seal (14) is radially squeezed between the inner circumference of the outer terminal (11) and the outer circumference of the inner terminal (12) to achieve sealing between the two; An inner positioning protrusion (11d) is formed on the inner peripheral surface of the outer terminal (11), and the front end and the rear end of the inner seal (14) are respectively pressed against the rear end surface of the insulator (13) and the inner positioning protrusion (11d) to axially position the inner seal (14).

17. An electrical connection module, characterized in that: include: A rear cover (2) is formed with a mounting hole (201); and The coaxial connector (1) according to any one of claims 1 to 16 is inserted into the mounting hole (201).

18. The electrical connection module according to claim 17, wherein: The rear cover (2) comprises a peripheral wall (20) and a rear end wall (21) connected to the rear end of the peripheral wall (20); an inner cylinder portion (22) is formed on the inner side of the rear end wall (21); and the mounting hole (201) passes through the inner cylinder portion (22) and the rear end wall (21); The outer seal (15) of the coaxial connector (1) is radially squeezed between the inner circumference of the inner cylindrical portion (22) and the outer circumference of the cylindrical body (110) of the outer terminal (11) to achieve a seal therebetween; The outer spring piece (162) of the shielding connector (16) of the coaxial connector (1) is in electrical contact with the outer peripheral surface of the inner cylinder (22) to electrically connect the outer terminal (11) and the back cover (2).

19. The electrical connection module according to claim 18, wherein: An outer cylinder portion (23) is formed on the outer side of the rear end wall (21), the mounting hole (201) is axially connected to the inner cavity (203) of the outer cylinder portion (23), and the rear ends of the outer terminal (11) and the inner terminal (12) extend into the inner cavity (203) of the outer cylinder portion (23) to respectively mate with the mating outer terminal and the mating inner terminal of the mating connector inserted into the inner cavity (203) of the outer cylinder portion (23).

20. The electrical connection module according to claim 18, wherein: An annular groove (25) surrounding the inner cylinder portion (22) is formed on the inner side of the rear end wall (21), and the outer elastic piece (162) of the shielding connector (16) extends into the annular groove (25).

21. The electrical connection module according to claim 17, wherein: Also includes: A circuit board (3) is arranged in the rear cover (2) and is electrically connected to the outer terminal (11) and the inner terminal (12) of the coaxial connector (1).

22. The electrical connection module according to claim 21, characterized in that: A first plug hole (31a) and a second plug hole (32a) are formed on the circuit board (3), and the plug pin (11a) of the external terminal (11) and the front end (12a) of the internal terminal (12) are respectively plugged into and welded to the first plug hole (31a) and the second plug hole (32a) to be electrically connected to the circuit board (3); and / or A first soldering pad and a second soldering pad are formed on the circuit board (3), and the base portion (111) of the outer terminal (11) and the front end (12a) of the inner terminal (12) are respectively soldered to the first soldering pad and the second soldering pad in a surface mounting manner.

23. The electrical connection module according to claim 21, wherein: Support bosses (24) are respectively formed at four corners on the inner side of the rear end wall (21) of the rear cover (2), and the circuit board (3) is supported on the support bosses (24); A positioning column (24a) is formed on at least one of a pair of diagonally opposite supporting bosses (24), a positioning through hole (3a) corresponding to the positioning column (24a) is formed on the circuit board (3), and the positioning column (24a) is inserted into the positioning through hole (3a) to position the circuit board (3).

24. The electrical connection module according to claim 23, wherein: Connecting holes (24b) are respectively formed on another pair of diagonally opposite supporting bosses (24) of the rear cover (2), and through holes (3b) corresponding to the connecting holes (24b) are formed on the circuit board (3); The electrical connection module further comprises a threaded connector, which passes through a through hole (3b) on the circuit board (3) and is threadedly connected to a connection hole (24b) on the back cover (2) to fix the circuit board (3) to the back cover (2).

25. An electronic device, characterized in that: include: The electrical connection module according to any one of claims 17 to 24; and The front cover is assembled onto the rear cover (2) of the electrical connection module.

26. The electronic device according to claim 25, wherein: The electronic device is a camera.

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